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4.1.27. Calculator Service
The Calculator function allows the users to perform different types of mathematical functions.
Button Function
Navigator-UP Switches to the UP function.
Navigator-DOWN Switches to the DOWN function.
Navigator-Left Switches to the LEFT function.
Navigator-Right Switches to the RIGHT function.
Navigator-OK Executes the mathematical function.
0-9 Buttons Enters the numeric digits of the number.
DEL Deletes a single character to the left.
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